Earnings Per Share - Additional Information (Detail) - shares	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Options to Purchase Common Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Common stock outstanding excluded from the computation of diluted earnings per share	154,258,000	191,519,000	154,258,000	191,519,000
Restricted Stock Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Common stock outstanding excluded from the computation of diluted earnings per share	0	0	144,535,000	263,392,000